Cased Hole
CX13 — Helix Centraliser
Patented Helix mechanism covering 7” to 13-5/8” casing — log multiple casing sizes in a single run, gravity descent to 80°.
Description
The CX13 HELIX centraliser is the latest addition to the FOCUS™ range of precision centralisers. With Petromac’s patented “Helix” mechanism and powerful compound leaf springs, the CX13 ensures precise centralization of heavy tool-strings in high deviation wells.
Unlike conventional centralizers, the CX13 passes easily through restrictions and facilitates smooth gravity descent in high deviation wells.
Designed for casing sizes from 7” up to 13-⅝”, the Helix centraliser enables data acquisition in multiple casings a single run, saving valuable rig time.
Applications
- Precise centralisation of wireline logging tools in casings from 7” to 13-⅝”
- Log multiple casing sizes in a single run.
- Gravity descent in wells up to 80 deg
- Passes seamlessly through restrictions
- Stick-slip elimination
Specifications
| Model | CX13 | |
|---|---|---|
| Weight | 45 lbs | |
| Length | 32.4” (0.82m) | |
| Volume | 0.09ft3 | |
| Min. Casing Size | Max. Casing size | |
| Adjustable Casing Range | 7”- #41 (ID 5.82") | 13-⅝”- #54.5 (ID 12.6”) |
| Load carry capability range1 | 130-215 lbs | |
| Minimum Restriction | 5-¾” | |
| Tool Compatibility2 | Slipover on 3-3/8” or 3-5/8” tool bodies | |
| Drag Force | 6 lbs | |
| Temperature rating | 400°F | |
| Pressure rating | 30,000 psi | |
| Minimum Collapsed OD | 5-⅝" | |
- 1. Capability is dependent on temperature and Casing ID, values above are based on the most demanding scenarios.
- 2.Adapters available for slimmer bodies/ mandrels
| Body | 17-4 PH SS, Heat treated H1075 |
|---|---|
| Bearings | Custom Bush Bearing |
| Grease | Lubriplate 930AA |
| Attachment | Alloy Steel grub Screw , 1/4” hex, UNC Thread, Dog end type |
| SWL, shear set screws | 17,000 lbs |
Charts & Diagrams
Other models in this family
All Focus™ Centralisers →| Model | Hole size | Bore | Temp | Weight |
|---|---|---|---|---|
| CP12 CP12 — Centering Parallelogram for 12in | 10-1/8″ – 17-1/2″ | 4-1/2″ | 400°F | 45 lbs |
| CP8 CP8 — Co-Pivot Centraliser for 8.5in | 7-1/2″ – 8-1/2″ | 3-5/8″ | 400°F | 39 lbs |
| CA7 CA7 — Centering Adjustable Taxi for 7in | 7″ | 3-5/8″ | 400°F | 15 lbs |
| CRIL CRIL — Centraliser Rocker In-Line | 4-1/2″ – 7″ | — | 350°F | 65 lbs |
| CRU CRU — Centraliser Rocker for USIT | 4-1/2″ – 7″ | — | 400°F | 23 lbs |
| CX9 CX9 — Helix Centraliser | 7″ – 9-5/8″ | 3-5/8″ | 400°F | 40 lbs |
| CX7 CX7 — Helix Centraliser | 5″ – 8-5/8″ | — | 400°F | 27 lbs |